Air filter device capable of prolonging maintenance period of filter element and control method

Abstract

The invention discloses an air filter device capable of prolonging the maintenance period of a filter element and a control method, belongs to the technical field of engines, and solves the problem that the maintenance burden is increased due to the fact that an air filter is manually and irregularly maintained. The air filter device capable of prolonging the maintenance period of the filter element comprises an air filter shell and the air filter element installed in the air filter shell and further comprises a first winding drum, a second winding drum and a controller, and the air filter shell comprises an upper end cover, a lower end cover and a circumferential panel installed between the upper end cover and the lower end cover; the circumferential panel is composed of a sealing plate and a punching plate provided with a plurality of air inlet holes, and the first winding drum and the second winding drum are both located on one side of the sealing plate. According to the air filter device capable of prolonging the maintenance period of the filter element, the maintenance period of the filter element is prolonged, and the maintenance cost is reduced. The invention further discloses a control method of the air filter device capable of prolonging the maintenance period of the filter element, the maintenance period of the filter element is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and more specifically, to an air filter device and a control method for extending the maintenance period of a filter element. Background Art

[0002] Internal combustion engines usually require an air filter to filter the intake air to prevent foreign objects such as impurities and particles in the intake air from entering the internal combustion engine cylinder and causing cylinder wear.

[0003] When only using the filter element to filter the intake air, if there are a lot of impurities such as dust particles in the air, the filter element needs to be replaced frequently. When the air filter housing is covered with a layer of non-woven fabric or other filter materials with filtering ability, although the replacement cycle of the filter element can be appropriately extended, it is still necessary to manually perform maintenance on the filter element and the filter material on the air filter housing from time to time, which increases the burden of maintenance and increases the cost required for maintenance. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. One purpose of the present invention is to provide an air filter device that extends the maintenance period of the filter element, which can realize automatic replacement of the filter material at the air filter housing, maximize the protection of the filter element, extend the maintenance period of the filter element, and reduce the maintenance cost.

[0005] The second object of the present invention is to provide a control method for an air filter device that uses an extended filter element maintenance period, which can realize automatic replacement of filter materials at the air filter housing, maximize the protection of the filter element, extend the filter element maintenance period, and reduce the maintenance cost.

[0006] To achieve the above-mentioned purpose one, the present invention provides an air filter device for extending the maintenance period of a filter element, comprising an air filter housing and an air filter element installed therein, and also comprising a first reel, a second reel, and a controller. The air filter housing comprises an upper end cover, a lower end cover, and a circumferential panel installed between the upper end cover and the lower end cover, the circumferential panel is composed of a closing plate and a perforated plate with a plurality of air inlet holes, the first reel and the second reel are both located on one side of the closing plate, and the two ends of the first reel and the second reel are respectively rotatably connected to the two ends of the upper end cover and the lower end cover, a driving motor is provided at one end of the upper end cover, and the output end of the driving motor is transmission-connected to the second reel through a belt transmission mechanism, a filter material is sleeved on the first reel, one end of the filter material is wrapped around the outer wall surface of the perforated plate and connected to the second reel, a pressure sensor is provided at the air outlet of the air filter housing, and the driving motor and the pressure sensor are both electrically connected to the controller.

[0007] As a further improvement, a first pressure wheel and a second pressure wheel are further provided on one side of the closing plate, and the first pressure wheel is located on the side of the first reel away from the second reel, and the second pressure wheel is located on the side of the second reel away from the first reel, and both ends of the first pressure wheel and the second pressure wheel are rotatably connected to the upper end cover and the lower end cover respectively, and the filter material is inserted between the first pressure wheel, the second pressure wheel and the closing plate.

[0008] Furthermore, the diameters of the upper end cover and the lower end cover are both larger than the diameter of the circumferential panel.

[0009] Furthermore, both ends of the first reel, the second reel, the first pressure wheel, and the second pressure wheel are detachably connected to the upper end cover and the lower end cover, respectively.

[0010] Furthermore, the circumferential area of ​​the closed plate is smaller than the circumferential area of ​​the perforated plate, and the circumferential area of ​​the closed plate is smaller than half the circumferential area of ​​the circumferential panel.

[0011] Furthermore, the belt transmission mechanism includes a driving wheel and a driven wheel, the driving wheel is connected to the output end of the driving motor, the driven wheel is connected to one end of the second reel close to the driving motor, and the driving wheel is connected to the driven wheel through a belt.

[0012] Furthermore, the driven wheel is provided with a handle.

[0013] Furthermore, a motor bracket is detachably provided at one end of the upper end cover, and the driving motor is mounted on the upper end cover via the motor bracket.

[0014] To achieve the above-mentioned second objective, the present invention provides a control method for an air filter device for extending the filter element maintenance period, comprising the following steps:

[0015] S1: The pressure sensor detects that the pressure at the air filter housing outlet is equal to or less than the preset value F1, and feeds back the signal to the controller;

[0016] S2: The controller controls the driving motor to start, the driving motor drives the second reel to rotate, the second reel pulls the filter material to drive the first reel to rotate, thereby replacing the filter material on the outer wall of the punching plate;

[0017] S3: The pressure sensor detects that the pressure at the air filter housing outlet rises to a preset value F2, and feeds back the signal to the controller;

[0018] S4: The controller controls the drive motor to stop;

[0019] S5: Repeat step S1.

[0020] Furthermore, the preset value F1 is -6kPa to -5kPa, and the preset value F2 is -4kPa to -2kPa.

[0021] Beneficial Effects

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. An air filter device and control method for extending the maintenance period of a filter element of the present invention comprises the following steps: a first reel and a second reel are provided on an air filter housing, a new filter material is provided on the first reel, the filter material surrounds and wraps the air filter housing and is connected to the second reel, and the air entering the air filter element is preliminarily filtered; the second reel is driven by a belt transmission mechanism of a driving motor to rotate clockwise, thereby replacing the dirtier filter material of the punching plate and rolling up the dirtier filter material for recycling, thereby realizing automatic replacement of the filter material on the circumferential surface of the air filter housing, protecting the air filter element to the maximum extent, extending the maintenance period of the air filter element, and reducing the cost required for maintenance.

[0024] 2. An air filter device and control method for extending the maintenance period of a filter element of the present invention, wherein a first pressing wheel and a second pressing wheel are respectively used to press the two ends of the filter material so that the filter material fits tightly with the circumferential surface of the punching plate, thereby preventing foreign particles from penetrating the filter material directly into the filter element, thereby affecting the service life of the air filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0028] Figure 4 It is a schematic diagram of the top view of the structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure without filter material installed in the present invention;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the air filter body and the air filter housing in the present invention;

[0031] Figure 7 It is a schematic diagram of the control principle of the present invention;

[0032] Figure 8 It is a flow chart of the control method in the present invention.

[0033] Among them: 1-air filter element, 2-air filter housing, 3-first reel, 4-second reel, 5-drive motor, 6-driving wheel, 7-driven wheel, 8-filter material, 9-pressure sensor, 10-first clamping wheel, 11-second clamping wheel, 12-controller, 13-handle, 14-air inlet, 15-motor bracket, 21-upper cover, 22-lower cover, 23-closing plate, 24-punching plate. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0035] See also Figure 1-8, an air filter device for extending the maintenance period of a filter element, comprising an air filter housing 2 and an air filter element 1 installed therein, the air filter element 1 being a wire mesh filter element or a non-metal filter element, when the air filter element 1 is a wire mesh filter element, the air filter element 1 can be a stainless steel wire mesh filter element, etc., when the air filter element 1 is a non-metal filter element, the air filter element 1 can be a filter paper, a resin filter element, etc.; further comprising a first reel 3, a second reel 4, and a controller 12, the air filter housing 2 comprising an upper end cover 21, a lower end cover 22 and a circumferential panel installed between the upper end cover 21 and the lower end cover 22, the circumferential panel being composed of a closing plate 23 and a punching plate 24 with a plurality of air inlet holes 14 The first reel 3 and the second reel 4 are both located on one side of the closing plate 23, and the two ends of the first reel 3 and the second reel 4 are rotatably connected to the two ends of the upper end cover 21 and the lower end cover 22 respectively, which can prevent the air from flowing through the first reel 3 when entering the air filter element 1, which will cause contamination of the new filter material 8 on the first reel 3 in the long run, affecting the service life of the new filter material 8; a driving motor 5 is provided at one end of the upper end cover 21, and the output end of the driving motor 5 is connected to the second reel 4 through a belt transmission mechanism. The first reel 3 is sleeved with a filter material 8, and one end of the filter material 8 is wrapped around the outer wall of the punching plate 24 and connected to the second reel 4. The filter material 8 can be a non-woven fabric, filter paper, fabric, or polymer material, etc.; a pressure sensor 9 is provided at the air outlet of the air filter housing 2, and the drive motor 5 and the pressure sensor 9 are electrically connected to the controller 12, wherein the drive motor 5 can be powered by a 24V DC voltage, and the pressure sensor 9 can be powered by a 5V voltage; when the pressure sensor 9 detects that the pressure at the air outlet of the air filter housing 2 is equal to or less than the preset value F1, it means that the filter material 8 is dirty, thereby causing the air intake of the air filter housing 2 to be blocked. At this time, the controller 12 controls the drive motor 5 to start, and the drive motor 5 drives the second reel 4 to rotate clockwise through the belt drive, and the new reel 3 on the first reel 3 rotates clockwise. The filter material 8 is pulled out and covers the air filter housing 2 along the circumferential direction. At the same time, the dirtier filter material 8 is rolled up by the second reel 4. The pressure sensor 9 detects that the pressure at the air outlet of the air filter housing 2 rises to the preset value F2. The controller 12 controls the drive motor 5 to stop working. When the pressure sensor 9 detects again that the pressure at the air outlet of the air filter housing 2 is equal to or less than the preset value F1, the above work is repeated. By wrapping the filter material 8 around the circumferential surface of the punching plate 24, the air entering the air filter element 1 is primarily filtered, which can extend the service life of the air filter element 1, extend the maintenance period of the air filter element 1, and reduce the cost required for maintenance.

[0036] A first pressing wheel 10 and a second pressing wheel 11 are also provided on one side of the closing plate 23, and the first pressing wheel 10 is located on the side of the first reel 3 away from the second reel 4, and the second pressing wheel 11 is located on the side of the second reel 4 away from the first reel 3. Both ends of the first pressing wheel 10 and the second pressing wheel 11 are rotatably connected to the upper end cover 21 and the lower end cover 22 respectively, and the filter material 8 is inserted between the first pressing wheel 10, the second pressing wheel 11 and the closing plate 23; the first pressing wheel 10 and the second pressing wheel 11 respectively press the two ends of the filter material 8, so that the filter material 8 is tightly fitted with the circumferential surface of the punching plate 24, so as to prevent impurity particles from penetrating the filter material 8 and directly entering the air filter element 1 from the air inlet 14, thereby affecting the service life of the air filter element 1.

[0037] In this embodiment, the diameters of the upper end cover 21 and the lower end cover 22 are both larger than the diameter of the circumferential panel; the upper end cover 21 and the lower end cover 22 can limit the filter material 8 surrounding the circumferential surface of the perforated plate 24, to avoid the filter material 8 being offset when the driving motor 5 drives the second reel 4 to rotate and the second reel 4 pulls the filter material, and cannot completely cover the perforated plate 24, causing foreign particles to directly enter the air filter element 1 from the air inlet 4, thereby affecting the service life of the air filter element 1.

[0038] In this embodiment, both ends of the first reel 3, the second reel 4, the first pressure wheel 10, and the second pressure wheel 11 are detachably connected to the upper end cover 21 and the lower end cover 22, respectively; this facilitates replacement of the filter material 8 on the first reel 3 and the second reel 4, and facilitates removal for repair and maintenance when the first reel 3, the second reel 4, the first pressure wheel 10, and the second pressure wheel 11 fail.

[0039] In this embodiment, the circumferential area of ​​the closed plate 23 is smaller than the circumferential area of ​​the perforated plate 24, and the circumferential area of ​​the closed plate 23 is smaller than half the circumferential area of ​​the circular panel; under the premise of not affecting the installation space of the first reel 3, the second reel 4, the first pressure wheel 10, and the second pressure wheel 11, the area of ​​the closed plate 23 is as small as possible, and the area of ​​the perforated plate 24 is increased, thereby increasing the air intake area of ​​the air filter and increasing its air intake volume.

[0040] In this embodiment, the belt transmission mechanism includes a driving wheel 6 and a driven wheel 7. The driving wheel 6 is connected to the output end of the driving motor 5, and the driven wheel 7 is connected to the end of the second reel 4 close to the driving motor 5. The driving wheel 6 is connected to the driven wheel 7 through a belt transmission; when the pressure sensor 9 detects that the pressure at the air outlet of the air filter housing 2 is equal to or less than the preset value F1, it means that the filter material 8 is relatively dirty. At this time, the controller 12 controls the driving motor 5 to start, and the driving wheel 6 drives the driven wheel 7 to rotate through the belt transmission, thereby driving the second reel 4 to rotate clockwise. The second reel 4 drives the first reel 3 to rotate clockwise through the filter material 8. The new filter material 8 on the first reel 3 is pulled out, and the filter material 8 surrounds and covers the perforated plate 24 in the circumferential direction. At the same time, the dirty filter material 8 is rolled up by the second reel 4, thereby completing the replacement of the filter material 8 on the circumferential surface of the perforated plate 24.

[0041] In this embodiment, a handle 13 is provided on the driven wheel 7; when the new filter material 8 on the first reel 3 is used up, the new filter material 8 is replaced on the first reel 3, the new filter material 8 is connected to the old filter material 8, and then the driven wheel 7 is manually rotated by the handle 13 to pull the new filter material 8 out to the desired position.

[0042] In the present embodiment, a motor bracket 15 is detachably provided at one end of the upper end cover 21, and the drive motor 5 is mounted on the upper end cover 21 through the motor bracket 15; there are three motor brackets 15 in total, and the three motor brackets 15 are arranged circumferentially at one end of the upper end cover 21, and the interval between two adjacent motor brackets 15 is 120°. The three fulcrums connecting the three motor brackets 15 and the upper end cover 21 are connected to each other to form an equilateral triangle, so that the drive motor 5 has higher stability. In other embodiments, the number of motor brackets 15 can be increased to further enhance the stability of the drive motor 5.

[0043] A control method for an air filter device for extending the filter element maintenance period comprises the following steps:

[0044] S1: The pressure sensor 9 detects that the pressure at the air outlet of the air filter housing 2 is equal to or less than a preset value F1, and feeds back the signal to the controller 12;

[0045] S2: The controller 12 controls the driving motor 5 to start, and the driving motor 5 drives the second reel 4 to rotate. The second reel 4 pulls the filter material 8 to drive the first reel 3 to rotate, thereby replacing the filter material 8 on the outer wall of the punching plate 22;

[0046] S3: The pressure sensor 9 detects that the pressure at the air outlet of the air filter housing 2 rises to a preset value F2, and feeds back a signal to the controller 12;

[0047] S4: The controller 12 controls the driving motor 5 to stop;

[0048] S5: Repeat step S1.

[0049] In this embodiment, the preset value F1 is -6 kPa to -5 kPa, and the preset value F2 is -4 kPa to -2 kPa.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An air filter device for extending the maintenance period of a filter element, comprising an air filter housing (2) and an air filter element (1) installed therein, characterized in that: The air filter housing (2) further comprises a first reel (3), a second reel (4), and a controller (12); the air filter housing (2) comprises an upper end cover (21), a lower end cover (22), and a circumferential panel installed between the upper end cover (21) and the lower end cover (22); the circumferential panel is composed of a closing plate (23) and a perforated plate (24) having a plurality of air inlet holes (14); the first reel (3) and the second reel (4) are both located on one side of the closing plate (21); and both ends of the first reel (3) and the second reel (4) are respectively connected to the upper end cover (21) and the lower end cover (22). The lower end cover (22) is rotatably connected, one end of the upper end cover (21) is provided with a driving motor (5), the output end of the driving motor (5) is transmission-connected to the second reel (4) through a belt transmission mechanism, a filter material (8) is sleeved on the first reel (3), one end of the filter material (8) is wrapped around the outer wall surface of the punching plate (22) and is connected to the second reel (4), the air outlet of the air filter housing (2) is provided with a pressure sensor (9), and the driving motor (5) and the pressure sensor (9) are both electrically connected to the controller (12).

2. An air filter device for extending the filter element maintenance period according to claim 1, characterized in that: A first pressing wheel (10) and a second pressing wheel (11) are also provided on one side of the closing plate (21), and the first pressing wheel (10) is located on a side of the first reel (3) away from the second reel (4), and the second pressing wheel (11) is located on a side of the second reel (4) away from the first reel (3). Both ends of the first pressing wheel (10) and the second pressing wheel (11) are rotatably connected to the upper end cover (21) and the lower end cover (22), respectively, and the filter material (8) is inserted between the first pressing wheel (10), the second pressing wheel (11) and the closing plate (23).

3. An air filter device for extending the filter element maintenance period according to claim 2, characterized in that: The diameters of the upper end cover (21) and the lower end cover (22) are both larger than the diameter of the circumferential panel.

4. The air filter device for extending the filter element maintenance period according to claim 1, characterized in that: Both ends of the first reel (3), the second reel (4), the first pressing wheel (10), and the second pressing wheel (11) are detachably connected to the upper end cover (21) and the lower end cover (22), respectively.

5. The air filter device for extending the filter element maintenance period according to claim 1, characterized in that: The circumferential area of ​​the closed plate (21) is smaller than the circumferential area of ​​the perforated plate (22), and the circumferential area of ​​the closed plate (21) is smaller than half the circumferential area of ​​the circumferential panel.

6. The air filter device for extending the filter element maintenance period according to claim 1, characterized in that: The belt transmission mechanism comprises a driving wheel (6) and a driven wheel (7), wherein the driving wheel (6) is connected to the output end of the driving motor (5), and the driven wheel (7) is connected to an end of the second reel (4) close to the driving motor (5), and the driving wheel (6) is connected to the driven wheel (7) through a belt.

7. An air filter device for extending the filter element maintenance period according to claim 6, characterized in that: The driven wheel (7) is provided with a handle (13).

8. The air filter device for extending the filter element maintenance period according to claim 1, characterized in that: A motor bracket (15) is detachably provided at one end of the upper end cover (21), and the drive motor (5) is mounted on the upper end cover (21) via the motor bracket (15).

9. A control method for an air filter device for extending the filter element maintenance period according to claim 1, characterized in that: The steps include: S1: The pressure sensor (9) detects that the pressure at the air outlet of the air filter housing (2) is equal to or less than a preset value F1, and feeds back a signal to the controller (12); S2: The controller controls the driving motor (5) to start, the driving motor (5) drives the second reel (4) to rotate, the second reel (4) pulls the filter material (8) to drive the first reel (3) to rotate, thereby replacing the filter material (8) on the outer wall of the punching plate (22); S3: The pressure sensor (9) detects that the pressure at the air outlet of the air filter housing (2) rises to a preset value F2, and feeds back a signal to the controller (12); S4: the controller (12) controls the driving motor (5) to stop; S5: Repeat step S1.

10. A control method for an air filter device for extending the filter element maintenance period according to claim 9, characterized in that: The preset value F1 is -6kPa to -5kPa, and the preset value F2 is -4kPa to -2kPa.

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